<template>
    <div>
        <!-- 面包屑区域 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>
        <!-- 卡片视图区 -->
        <el-card>
        <!-- 搜索与添加区域 -->
        <el-row :gutter="20">
            <el-col :span="7">
                <el-input placeholder="请输入内容" class="input-with-select" v-model="queryInfo.query" clearable @clear="getUserList">
                    <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
                </el-input>
            </el-col>
            <el-col :span="4">
                <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
            </el-col>
        </el-row>
        <!-- 用户列表区域 -->
        <el-table :data="userList" border stripe>
            <el-table-column type="index"></el-table-column>
            <el-table-column prop="username" label="姓名"></el-table-column>
            <el-table-column prop="email" label="邮箱"></el-table-column>
            <el-table-column prop="mobile" label="电话"></el-table-column>
            <el-table-column prop="role_name" label="角色"></el-table-column>
            <el-table-column label="状态">
                <template slot-scope="scope">
                    <el-switch
                    v-model="scope.row.mg_state" @change="userStateChange(scope.row)">
                    </el-switch>
                </template>
            </el-table-column>
            <el-table-column label="操作">
              <template slot-scope="scope">
                <!-- 修改按钮 -->
                <el-tooltip class="item" effect="dark" content="修改信息" placement="top" :enterable="false">
                <el-button size="mini" type="primary" icon="el-icon-edit" @click="showEditDialog(scope.row.id)"></el-button>
                </el-tooltip>
                <!-- 删除按钮 -->
                <el-tooltip class="item" effect="dark" content="删除用户" placement="top" :enterable="false">
                <el-button size="mini" type="danger" icon="el-icon-delete" @click="removeUserById(scope.row.id)"></el-button>
                </el-tooltip>
                <!-- 分配角色按钮 -->
                <el-tooltip class="item" effect="dark" content="分配角色" placement="top" :enterable="false">
                <el-button type="warning" icon="el-icon-setting" size="mini" @click="showSetRoleDialog(scope.row)"></el-button>
                </el-tooltip>
              </template>
            </el-table-column>
        </el-table>
        <!-- 分页区域 -->
        <el-pagination
          @size-change="handleSizeChange"
          @current-change="handleCurrentChange"
          :current-page="queryInfo.pagenum"
          :page-sizes="[1, 2, 3, 4]"
          :page-size="queryInfo.pagesize"
          layout="total, sizes, prev, pager, next, jumper"
          :total="total">
        </el-pagination>
        </el-card>
        <!-- 添加用户对话框 -->
        <el-dialog
        title="添加用户"
        :visible.sync="addDialogVisible"
        width="30%"
        @close="addDialogClose">
        <!-- 内容主体区域 -->
        <el-form ref="addFormRef" :model="addForm" label-width="70px" :rules="addFormRules">
          <el-form-item label="用户名" prop="username">
            <el-input v-model="addForm.username"></el-input>
          </el-form-item>
          <el-form-item label="密码" prop="password">
            <el-input v-model="addForm.password"></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="addForm.email"></el-input>
          </el-form-item>
          <el-form-item label="手机" prop="mobile">
            <el-input v-model="addForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <span slot="footer" class="dialog-footer">
          <el-button @click="addDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="addUser">添 加</el-button>
        </span>
      </el-dialog>
      <!-- 修改用户对话框 -->
      <el-dialog
        title="修改用户"
        :visible.sync="editDialogVisible"
        width="30%"
        @close="editDialogClose">
        <!-- 内容主体区域 -->
        <el-form ref="editFormRef" :model="editForm" label-width="70px" :rules="editFormRules">
          <el-form-item label="用户名" prop="username">
            <el-input v-model="editForm.username" disabled></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="editForm.email"></el-input>
          </el-form-item>
          <el-form-item label="手机" prop="mobile">
            <el-input v-model="editForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <span slot="footer" class="dialog-footer">
          <el-button @click="editDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="editUser(editForm.id)">修 改</el-button>
        </span>
      </el-dialog>
      <!-- 分配角色对话框 -->
      <el-dialog
        title="分配角色"
        :visible.sync="setRoleDialogVisible"
        width="50%"
        @close="setRoleDialogClose">
        <div>
          <p>当前用户：{{userInfo.username}}</p>
          <p>当前角色：{{userInfo.role_name}}</p>
          <el-select clearable v-model="selectedRoleId" placeholder="请选择">
            <el-option
              v-for="item in roleList"
              :key="item.id"
              :label="item.roleName"
              :value="item.id">
            </el-option>
          </el-select>
        </div>
        <span slot="footer" class="dialog-footer">
          <el-button @click="setRoleDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
        </span>
      </el-dialog>
    </div>
</template>

<script>
export default {
  data () {
    // 校验邮箱
    var checkEmail = (rule, value, cb) => {
      const regEmail = /^([a-zA-Z]|[0-9])(\w|\\-)+@[a-zA-Z0-9]+\.([a-zA-Z]{2,4})$/
      if (!regEmail.test(value)) return cb(new Error('邮箱格式错误'))
      return cb()
    }
    // 校验手机号
    var checkMobile = (rule, value, cb) => {
      const regEmail = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
      if (!regEmail.test(value)) return cb(new Error('手机号格式错误'))
      return cb()
    }
    return {
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 2
      },
      userList: [],
      total: 1,
      // 控制添加用户对话框的显示和隐藏
      addDialogVisible: false,
      // 添加用户的表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      // 添加用户表单规则验证
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 10, message: '用户名长度在3~10位', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 15, message: '密码长度在6~15位', trigger: 'blur' }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      // 修改用户对话框绑定数据
      editForm: {},
      // 控制修改用户对话框的显示和隐藏
      editDialogVisible: false,
      // 修改用户表单规则验证
      editFormRules: {
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      // 分配角色对话框展示
      setRoleDialogVisible: false,
      // 要被分配角色的用户信息
      userInfo: {},
      // 角色列表
      roleList: [],
      // 要分配的角色的id
      selectedRoleId: ''
    }
  },
  created () {
    this.getUserList()
  },
  methods: {
    async getUserList () {
      const { data: res } = await this.$http.get('/users', {
        params: this.queryInfo
      })
      if (res.meta.status !== 200) return this.$message.error('用户列表获取失败')
      this.userList = res.data.users
      this.total = res.data.total
      // console.log(res)
    },
    // 监听pageSize改变
    handleSizeChange (newSize) {
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听页码值改变
    handleCurrentChange (newPage) {
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 监听switch开关变化
    async userStateChange (data) {
      const { data: res } = await this.$http.put(`/users/${data.id}/state/${data.mg_state}`)
      if (res.meta.status !== 200) {
        data.mg_state = !data.mg_state
        return this.$message.error('用户状态修改失败')
      }
      this.$message.success('用户状态修改成功')
    },
    // 监听添加用户对话框关闭事件
    addDialogClose () {
      this.$refs.addFormRef.resetFields()
    },
    // 监听添加用户对话框添加按钮点击事件
    addUser () {
      this.$refs.addFormRef.validate(async (valid, error) => {
        if (!valid) return this.$message.error('请正确填写用户相关数据')
        const { data: res } = await this.$http.post('/users', this.addForm)
        if (res.meta.status !== 201) return this.$message.error('添加用户失败')
        this.$message.success('添加用户成功')
        this.addDialogVisible = false
        this.getUserList()
      })
    },
    async showEditDialog (id) {
      const { data: res } = await this.$http.get('users/' + id)
      if (res.meta.status !== 200) return this.$message.error('查询用户信息失败')
      this.editForm = res.data
      this.editDialogVisible = true
    },
    // 监听修改用户对话框添加按钮点击事件
    editUser (id) {
      this.$refs.editFormRef.validate(async (valid, error) => {
        if (!valid) return this.$message.error('请正确填入相关信息')
        const { data: res } = await this.$http.put('/users/' + id, {
          email: this.editForm.email,
          mobile: this.editForm.mobile
        })
        if (res.meta.status !== 200) return this.$message.error('更新用户信息失败')
        this.$message.success('更新用户信息成功')
        this.getUserList()
        this.editDialogVisible = false
      })
    },
    // 监听修改用户对话框关闭事件
    editDialogClose () {
      this.$refs.editFormRef.resetFields()
    },
    // 监听删除用户事件
    async removeUserById (id) {
      const res = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch((error) => error)
      // 用户确认删除，返回confirm字符串,否则返回cancel字符串
      // console.log(res)
      if (res === 'confirm') {
        const { data: res } = await this.$http.delete('/users/' + id)
        if (res.meta.status !== 200) return this.$message.error('删除用户失败')
        this.$message.success('删除用户成功')
        this.getUserList()
      } else {
        return this.$message.info('已取消删除')
      }
    },
    // 监听分配角色按钮
    async showSetRoleDialog (userInfo) {
      this.userInfo = userInfo
      const { data: res } = await this.$http.get('/roles')
      if (res.meta.status !== 200) return this.$message.error('角色列表获取失败')
      this.roleList = res.data
      this.setRoleDialogVisible = true
    },
    // 发生请求分配角色
    async saveRoleInfo () {
      if (!this.selectedRoleId) {
        return this.$message.error('请选择要分配的角色')
      }
      const { data: res } = await this.$http.put(`/users/${this.userInfo.id}/role`, {
        rid: this.selectedRoleId
      })
      if (res.meta.status !== 200) return this.$message.error('分配角色失败')
      this.$message.success('分配角色成功')
      this.getUserList()
      this.setRoleDialogVisible = false
    },
    // 监听分配角色对话框关闭
    setRoleDialogClose () {
      this.selectedRoleId = ''
      this.userInfo = {}
    }
  }
}
</script>

<style lang="less" scoped>

</style>
